Minolta Camera Kabushiki Kaisha

Osaka Municipal Government

Kimiyuki Ito

Hideaki Ueda

Yuki Shimada

Takamasa Ueda

Mitsutoshi Sakamoto

Tsuneaki Hirashima

Toshinobu Ohno

Yoshio Ishino

Masakazu Takata

Souichi Yamamoto

Shigeaki Tokutake

Yuko Mikasa

A photosensitive member is disclosed, which comprises a photosensitive layer containing a fluorescent bleaching agent comprising a coumarin compound represented by the formula (I): ##STR1##

Photosensitive member containing specific coumarin fluorescent bleaching

This invention relates to a photosensitive member with a charge generating layer and a charge transporting layer laminated on an electrically conductive substrate, in which the charge transporting layer comprises a charge transporting material and an aniline derivative represented by the following general formula [I] below; ##STR1## in which R.sub.1 and R.sub.2 are respectively an alkyl group or an aralkyl group, each of which may have a substituent; R.sub.3 -R.sub.7 are respectively a hydrogen atom, an alkyl group, an alkoxy group, a hydroxy group, an aryl group, an aralkyl group or a halogen atom.

Photosensitive member comprising specific aniline derivative

The present invention relates to a photosensitive member containing a specific bisazo compound described by general structural formula[I] and formed on an electrically conductive substrate; ##STR1## Wherein X is a hydrogen atom, halogen atom, alkyl radical, alkoxi radical, nitro radical or cyano radical; A is a diatomic radical selected from among the following: ##STR2## B is a coupler described by formulae [II] through [VI]; ##STR3## R is a hydrogen atom, halogen atom, alkyl radical, alkoxi radical, nitro radical or cyano radical; and Y is an aromatic carbocyclic residue or aromatic heterocyclic residue, each of which may have a substituent; G is a carbamoyl radical or sulfamoyl radical and may have a substituent; R.sub.1 is a hydrogen atom, alkyl radical, amino radical or carbamoyl radical, each of which may have a substituent, a carboxyl radical or cyano radical; M is an aryl group which may have a substituent, which is improved in photosensitivity and dispersibility.

Photosensitive member comprising bisazo pigment

The present invention uses an azo pigment having in the center of an N-oxide heterocyclic structure as a photoelectrical charge-generating material. The pigments are excellent in dispersion stability in a dispersed solution, and enable the provision of a photosensitive member excellent in sensitivity properties.

Photosensitive member comprising azo compound having pyridine-n-oxide or

The present invention relates a photosensitive member which has a charge generating layer comprising specific phthalocyanine as a charge generating material and specific resin as a binder, and/or a charge transporting layer comprising specific hydrazone compounds as a charge transporting material and dyes as an absorbent for undesired lights.

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Kawanishi, Japan

Kimiyuki Ito